Nema 23 Unipolar Stepper Motor 1A 191oz.in/1.35Nm 6-Leads Step Motor CNC Router Universal Stepper NEMA-23 76mm 6-wire 1.8deg step angle(200 steps/rev) Rated current 1.0A & resistance 8.6 ohms 1.35Nm(191.2oz.in) holding torque